I have used the 140 grain boat tail Hornady for a lot of years on everything from gophers and yotes to elk and moose. I have a pile of partitions and have used them also on everything. I haven't seen any difference on the performance on game animals. Dead is dead. I use partitions when hunting the moose, only because there is a pile of grizzly in the areas that I go into. Same with some of the elk areas that I hunt. I used to carry a 375 H&H all of the time, but have never had a problem with the grizzly, so I am sticking to the 270 Bee. Once the 140's are done, all that I will be loading are the 150 grain Speer. They just plain work. If I was hunting Alaska, then it would be partitions all the way. The partition is an excellent bullet, but is not really needed for most game animals. Use whatever you are comfortable with and good luck. I used to knock blacks off the cedar rail fences around the orchard with a 22 250. Killed them quick. Don't be paranoid of the black bear. They are easy to flatten if you place your shot in the heart or lungs.